Acer 3102WLMi Service Guide - Page 84

movement will occur when a slight, steady pressure is applied to the touchpad pointer.

Page 84 highlights

3. Replace the system board. After you use the touchpad, the pointer drifts on the screen for a short time. This self-acting pointer movement will occur when a slight, steady pressure is applied to the touchpad pointer. This symptom is not a hardware problem. Chapter 4 75

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